Lumber-marker.



E.'F. MITCHELL.

LUMBER MARKER. APPLICATION FI'LED MAR. 14, 1911.

Patented! Apr. 16, 1918.

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A 5 I (455 fayenefi/Yfiche/l E. F. MITCHELL.

LUMBER MARKER. APPLICATION FILED MAR. 14, I917.

1,262,826. Patented Apr. 16, 1918.

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' 1,262,826. specification musement. Patented Apr.16,-1918. 7 Application filed March 14,1911. 'sermlm. 154,787.. 7' To concern: Fig. 6 is a greatly. enlarged View, partly Be it known that I, EUGENE F.

a citizen of the United States, residing at .Spoliane, in the county of Spokane and State of Washington, have invented certain new and useful Improvements in Lumber-Markers, of which the following is a specification.

My inven"on relates to improvements in lumber-markers, and the principal object thereof is the provision of a novel and efficient device of this character which will operate automatically to print, stamp, im-

press or emboss upon the ends of boards or other lumber, letters, numerals, trademarks, svmhols, etc, or other descriptive matter.

u A further object resides in providing a-- device of the class indicated which is of such extremely simple, cheap, and compact construction as to render 'it highly pram. ticable and especially desirable in fulfillingits intended ofice.

Generally speaking'the device comprises automatic mechanical means for stamplng the desired legend upon the ends of boards afier mil-ling, planing, and-so forth, as they pass from the machines or are being conveyed to points for storage or shipment. ihis means includes a pivotally mounted lever a markin die carried thereby, a latch device adapted to retain the lever in raised, inoperative position, a setting and tripping member for the lever, and a positive spring tensioning means adapted to impart the necessary impact of the die upon the lumber and to retract the tripping member;

In the drawings accompanying this application,

Figure 1 is a side elevation showing the mechanism, the casing being in cross-sec- Y tion and mounted in position, the elements of the apparatus being in the relative positions they assume at the instant of release of the die-lever. i

Fig. 2 is a similar view showing the positions of the parts of the action during the progress of a board after the same has been stamped or marked.

Fig. 3 is a transverse section through the easing on the section lines of Fig; 1, showing the mechanism as viewed from the left of the latter figure. V

Fig. 4: is an enlarged'side view of the marking-lever. Fig. 5 is an enlarged front view' of the same,

eral views, the numeral 1 designates a hous= ing-or casing in which the mechanism comprising mydevice is inclosed. An actuat ing lever 2 is pivotally supported-by pins 3 which extend through the side walls of the casing and are secured in place by nuts 4. This actuating-lever is formed with a pair ofL-shaped arms 5 and 6 integral with the pivotal axle portion 7 of the lever, the

arm 6 being preferably of web-like design, and both mountin at their free ends a lumber engaging ro ler 8.1

A bifurcated die-lever 9 is jpivotally supported for swinging movement by the I actuating-lever 2 upon a shaft 10 and to the side of the arm 6 in a position to Wipe past the arm into the positions indicated in- Figs. 1 and 2."

V A latch-member ;11 is pivotally mounted at 12 in the short arm 2. of the lever 2, and a convolute compression spring 13 has its opposite ends secured to the lever arm 2 and to said latch member 11; being wound about the pivot portion 12..

The die-lever 9 has pivotally mounted at 14 at its outer end a balanced die 15 which is connected by a spring 16 with a pin 17 near the upper end of said lever. The lever is provided with an extension 18 formed with a groove 19, a catch-recessor notch 20, and a slightly concave roller engaging surface 21. An additional spring latch or deadapted to be engaged by the die-lever 9 to provide a yielding stop to limit the movement of the lever in that direction. i

f In operation, the roller 8 is adapted to be engaged successively, by the boards from a pl u shaping, or other machine as they tent-member 22 is'pivotally supported by pass endwise therefrom. Such a machine is indicated at 29. In Fig. 2 is illustrated the relative positions of the working parts while a board 30 is traveling below the marker. At such time the actuating-lever 2 ispushed forwardly or to the left. During the forward movement of said actuating! lever the concave surface 21 of the die-lever 9 will be brought into engagement-with a fixed roller 31(projectinginwardly from one side of the casing, and in consequence will be tilted from a depending position until it takes the position shown. Simultaneously with said forward movement of lever 2 the spring connected latch-member 11 will be drawn by the lever until its catch or notch 32 looks with the latch recess 20 of diearni 9, further movement of the latch-member being limited by the fixed roller 31. When the board drops from the machine 29 and thereby out of engagement with roller 8, the actuating-lever 2 will be retracted into the position shown in Fig. 1 by the action of the spring24, and the latch-member forced into engagement with the spring controlled detent 22 where it will be retained pending the succeeding forward movement of the actuating-lever.

In Fig. 1 a board 33-is shown in actuating relation to roller 8 immediately after the latter has been slightly advanced by the board and thereby effected the release of the die-lever which is under strong tension of the spring 24 and is illustrated as positioned at the moment of its release by the latchrecess 32 from which position it swings downwardly upon its pivot and the die is brought into contact with the end of the advancing board.

A most important feature of my invention consists of the particular means for mounting'the die 15. In Fig. 6, which is an enlarged detail view, a block 34 is shown pivotally supported between the side arms of the bifurcated die-lever 9, the bed 35 of the die being pivotally attached to the block by a pin 36, and the opposed engaging edges of the bed and block formed with curved rocking faces or bearing faces 37 and 38. By this construction-the face of the die will engage the board end evenly although such end be slightly out of square or has a slant ing face, and will consequently effect a perfect imprint. I

The spring 16 which has one. end secured to the pin 17 is attached at its other end to a tongue portion 39 of an extended curved portion 37 which latter is made integral with the die bed and is formed with shoulder portions 38' adapted to engage the dielever arms. This arrangement in connection with the pivot 14 which secures the die to the die-lever operates to provide clearance for the lumber after the imprint has been efiected', as the die will yield before naeasae I have shown the casing supported by a bracket 40, but the method of suppdrt will necessarily vary to adapt the device to different types of machines. For convenience of access to the interior of the casing ther is provided a hinged closure =41.

Having described my invention, its construction, operation, and utility, I claim l. A devlce of the character described, consisting of a pivotally supported actuating-lever adapted to be engaged and operated by a moving object, a die-lever pivotally supported by the actuating-lever, means for imparting impact force to the die-lever, a latch member adapted to retain the dielever in raised position, and retracting means for the actuating-lever.

2. A device of the character described, consisting of a pivotally supported actuating-lever adapted to be operated by a moving object, a die supporting lever mounted on theactuating lever, a spring connected to the latter lever for imparting impact force thereto, a pivoted latch-member adapted to engage the die supporting lever to retain the same in raised position, a detent adapted to engage the latch-member, and spring means for retracting the actuating-lever into initial engagement with said moving object. I

ated by a moving object, a die supporting Y lever pivotally supported by the actuatinglever and disposed at one side thereof, the pivoted portion of the die supporting lever being provided with a fixed member engaging surface and a catch, a. pivoted latchmember having a catch adapted to engage said first mentioned catch to retain the die supporting lever in raised position, a piv oted detent adapted to engage said latchmember, a fixed member adapted to engage said engaging surface, and a spring connected to said die supporting lever adaptedv to retract said actuating-lever and to impart impact force to said die-lever.

4. The combination in a number marker of a pivoted die lever, mechanism for swinging the lever and means for retaining said lever in raised position, a die block pivoted" ating lever in the path of movement of an object, of a die carrying lever pivoted in the actuating lever, means for imparting impact force to the die lever, means for retaining the die lever inraised position, and means-for retracting the actuating leverr 6. The combination With a pivoted actu- 1 ating lever adapted to be operated by a moving board, of a die lever pivoted in the actuating lever .and means for imparting impact 10 in raised position, and means for retracting 15 the actuating lever.

In testimony whereof, I affix my signature.

EUGENE F. MITCHELL. 

